card-to-card speed

Richard Gaskin ambassador at
Wed Dec 7 11:56:26 EST 2016

A friend of mine has an app where some animations are done by flipping 
through cards.  Speed is variable, set with a "wait <n> milliseconds" 
statement, so the user can view the sequence as quickly or slowly as 

In versions up through 6.x the speed was quite good, but in v7, 8, and 9 
the speed drops below acceptability.

We did some tests and oddly enough the problem doesn't seem to be with 
card rendering:  when we comment out the "wait" statement speed is 
pretty good. It's maybe a tad slower perceptibly, but still good enough 
for the animation to be viewed meaningfully.

But "wait 1 millisecons" or even "wait 0 milliseconds" takes FAR longer 
in recent versions than in v6.

He has no "...with messages" clause, so any extra time needed for the 
event loop should not be a factor.

Something seems amiss with the "wait" command itself.

He's sending me his stack file so I can winnow it down to a good test 
case, but in the meantime I wanted to ask here:

Have any of you seen unusual delay with "wait" statements in versions 
later than v6?

  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
  Ambassador at      

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